About this 3D model
Just a simple but clean Alien Keychain! =) I used Bambu XC1 Default settings with 17% ironing on top-layer. I would increase top-layer or infill depending on your colors and if you would like to hide infill. Here's a link to another Alien keychain I've designed! =) https://makerworld.com/en/models/190613#profileId-210408